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<head><meta charset="utf-8"><title>Issue #50507 &quot;EvaluationCache overwrites its entries&quot; · t-compiler/wg-parallel-rustc · Zulip Chat Archive</title></head>
<h2>Stream: <a href="https://rust-lang.github.io/zulip_archive/stream/187679-t-compiler/wg-parallel-rustc/index.html">t-compiler/wg-parallel-rustc</a></h2>
<h3>Topic: <a href="https://rust-lang.github.io/zulip_archive/stream/187679-t-compiler/wg-parallel-rustc/topic/Issue.20.2350507.20.22EvaluationCache.20overwrites.20its.20entries.22.html">Issue #50507 &quot;EvaluationCache overwrites its entries&quot;</a></h3>

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<a name="202118103"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187679-t-compiler/wg-parallel-rustc/topic/Issue%20%2350507%20%22EvaluationCache%20overwrites%20its%20entries%22/near/202118103" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> Gabriel Majeri <a href="https://rust-lang.github.io/zulip_archive/stream/187679-t-compiler/wg-parallel-rustc/topic/Issue.20.2350507.20.22EvaluationCache.20overwrites.20its.20entries.22.html#202118103">(Jun 26 2020 at 17:21)</a>:</h4>
<p>Hi! I've been looking into <a href="https://github.com/rust-lang/rust/issues/50507">https://github.com/rust-lang/rust/issues/50507</a>, linked from the Query Parallelization Tracking Issue.<br>
I thought I'd start by trying to reproduce the mentioned crash. I've replaced <code>.insert</code> with <code>.insert_same</code>. Then I ran the whole compiler test suite and all tests passed... so I'm guessing this bug doesn't exist anymore?<br>
Is there anything I'm doing wrong?</p>



<a name="202129507"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187679-t-compiler/wg-parallel-rustc/topic/Issue%20%2350507%20%22EvaluationCache%20overwrites%20its%20entries%22/near/202129507" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/187679-t-compiler/wg-parallel-rustc/topic/Issue.20.2350507.20.22EvaluationCache.20overwrites.20its.20entries.22.html#202129507">(Jun 26 2020 at 19:06)</a>:</h4>
<p>I don't know that it makes too much sense to look at fixing that issue, presuming you're in parallel mode, because parallel compiler is not an area of active effort right now</p>



<a name="202129547"></a>
<h4><a href="https://rust-lang.zulipchat.com#narrow/stream/187679-t-compiler/wg-parallel-rustc/topic/Issue%20%2350507%20%22EvaluationCache%20overwrites%20its%20entries%22/near/202129547" class="zl"><img src="https://rust-lang.github.io/zulip_archive/assets/img/zulip.svg" alt="view this post on Zulip" style="width:20px;height:20px;"></a> simulacrum <a href="https://rust-lang.github.io/zulip_archive/stream/187679-t-compiler/wg-parallel-rustc/topic/Issue.20.2350507.20.22EvaluationCache.20overwrites.20its.20entries.22.html#202129547">(Jun 26 2020 at 19:07)</a>:</h4>
<p>but if you can't reproduce it with parallel enabled we can perhaps just close</p>



<hr><p>Last updated: Aug 07 2021 at 22:04 UTC</p>
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